Development and Performance Evaluation of a Groundnut Shelling Machine

Yıl 2022, Cilt: 6 Sayı: 3, 85 - 94, 30.09.2022

Olufemi Adetola , Opeyemi Akinniyi Emmanuel Olukunle

Öz

The numerous uses of groundnuts have made groundnut shelling a lucrative business for processors. In the past, early researchers developed compact machines, that had no cleaning compartments and has high mechanical damage. These problems need to be solved to an appreciable point for optimum utilization of harvested groundnut with an affordable and more compact machine. For optimum use of harvested groundnuts, a groundnut shelling machine was designed, fabricated, and tested. The machine was fabricated with locally available materials and designed to shell and clean the groundnut. The main parts are the hopper, shelling chamber, shelling drum, motor, fan chamber, channel, and frame. The shelling is done by a metallic shelling drum with rough surfaces rubbing the groundnut on another perforated surface. This perforation allows the shelled groundnut and the chaffs to escape to the inclined channel where the fan blows air to push out the chaffs at the upper end while groundnut flows through the lower end. The channel and hopper are inclined at an angle of 29o to the horizontal to aid unshelled and shelled groundnut flow. The motor of 1 horsepower was revolving at 170 rpm, providing the shelling drum with a speed of 68 rpm to shell the groundnut. The machine was tested three times to obtain the shelling efficiency, cleaning efficiency, and material efficiency which was 97.94%, 56.2%, and 90.13% respectively. The shelling capacity and mechanical damage of the machine were 192.86kg/hr. and 9.87% respectively. The cost of the machine is estimated at 250 USD. The machine is highly efficient and can be adopted by farmers and groundnut processing industries for groundnut shelling operations.

Anahtar Kelimeler

Design, fabrication, groundnut, machine, parameter, shelling, testing

Kaynakça

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